Abbott CELL-DYN 3200, Руководство оператора системы

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CELL-DYN ® 3200 System Operator’s Manual
11-21
9140181H—October 2001
Section 11 Quality Control
Laboratories seeing specialized patient populations, e.g. pediatric hospitals or
tumor centers, may need to verify these values due to “abnormal” patient
populations. Target values may be verified by evaluating approximately 500
samples and comparing the X-B means for those samples to the entered target
values. This can be done as follows:
1. Collect data from at least 500 patients. Manually calculate the mean, SD, and
CV for each index (MCV, MCH, and MCHC). The CV on 500 samples for
each index should be less than 1.5%. (The 1.5% is one-half the all
3% action limit.) If the CVs are greater than 1.5%, an additional 500 samples
should be evaluated.
2. If the CVs calculated in step 1 are less than 1.5%, enter the mean as the
Confirmed Target Value.
X-B Program Operation
The X-B program operates in the following manner:
1. The X-B RBC and X-B WBC fields are only displayed if the X-B functions
for RBC and WBC are turned ON in the
SET UP
menu.
2. The X-B RBC and X-B WBC functions are independent of each other and
each consists of a maximum of 20 batches.
3. A completed batch has a maximum 20 specimens.
4. As soon as a 20th specimen is added to the current batch, that batch is
completed, and a new batch is started with the next included specimen.
5. Specimens in a current batch are identified with an X-B flag in the Data Log.
The number of specimens in a current batch, either RBC or WBC, is shown
on the RUN screen under the Status Box in the fields XBRBC: X/IN and
XBWBC: X/IN where X is a number from 0 to 20.
6. When the X-B program is first turned from OFF to ON, the number of
records in that batch is zero and 0 is displayed on the RUN screen. When a
current batch reaches 20, the number 20 remains displayed on the RUN
screen until the first specimen is added to a new batch. At that time, the
number displayed changes to 1.
7. If there are records in a current batch and the operator turns the program for
that batch OFF (e.g., there are 5 records in the RBC batch and the X-B RBC
program is turned OFF), all records in the current batch are deleted. When the
program is turned back ON again, the number zero is displayed for the
current batch of that program.
8. The total number of completed batches, including both RBC and WBC, is
limited to 40. The total number of batches is 42 which includes 40 completed
batches plus 1 current batch for RBC and 1 current batch for WBC.
9. A completed batch can be viewed on the X-B File Display Screen.
10. Each X-B File Display page is able to display 10 batches.
11. A specimen may be assigned to X-B RBC, X-B WBC, or both. Included
specimens are assigned flags in the Data Log. These flags precede the
Sequence Number.